It will be cool to see Marquis and Sheed interacting with their new teammates.

Exclusive Season Ticket Holder Open Practice - Friday, October 16
Head Coach Doc Rivers and the Celtics invite you to take an inside look at what a typical workout is like at the annual Season Ticket Holder Open Practice at 7 p.m. on Friday, October 16 at Tsongas Arena located in Lowell, Mass. Watch your favorite Celtics take part in drills and scrimmages as the team prepares for a run to Banner 18.